For a while now my hair was often noticeably greasy underneath after washing. It was just one patch behind my ear, but now it is on the top of my head and underneath at the back. It looks and feels like it's been coated in cooking fat 
I'm 38 (yesterday!) so it's unlikely to be perimenopause I thought? But possibly hormonal in cause (isn't everything?). I have a very dry flaky scalp to boot so it's almost impossible to know what products to try. I've tried cider vinegar rinse but the greasy patches have spread since then so that put me off doing it again. Sometimes when blow drying my hair I realise it's still greasy so end up washing it again over the bath.
My hair is dyed and I wash it every other day and always have. I use shampoo, condition the ends only, then shampoo again. Currently using t-gel sensitive shampoo for 1st go and the kids child's farm SLS free one for the second.
It's really getting me down and any suggestions are welcomed 